It may be because the fact that Eclipse has cluttered user interface which looks like something developed in the 90s, despite we have 2016 now. Maybe because it

It may be because the fact that Eclipse has cluttered user interface which looks like something developed in the 90s, despite we have 2016 now. Maybe because it has myriads of plugins that are not well maintained, documented, or just does not work. Maybe because auto-completion is slow and does not display most probable candidates. It might also be that dark theme is pain in the eyes. I don't know, really... Seriously though, I believe Eclipse should hire good UI designer to produce modern, fast and good looking interface. Measure what people use, how they use it, for what reason - and then improve it. I got a feeling that they forgot (and it happened very early in the project life time) about the most important part of every project - end user.